Re: Heat-death of the last of the 2-socket/2-cores-each PowerMac G5s that I have access to

[Brandon Bergren]

On Tue, Jan 12, 2021, at 2:54 PM, Mark Millard via freebsd-ppc wrote:
> WARNING: Device "openfirm" is Giant locked and may be deleted before 
> FreeBSD 13.0.

I am planning on getting around to this one at some point.

> WARNING: Device "kbd" is Giant locked and may be deleted before FreeBSD 
> 13.0.

This one isn't just powerpc, I don't believe.

> I've not seen any evidence that anyone intends to work on
> avoiding those uses of the Giant lock. There is also, on some
> G4's that I have access to,
> 
> WARNING: Device "agp" is Giant locked and may be deleted before FreeBSD 
> 13.0.

There is some pressure to remove AGP entirely and rely on PCI mappings instead (which are slower IIRC but may possibly still have decent performance with modern object management techniques that the drivers have. Will need testing.)

AGP is kind of a weird case because of what it is and how it works, and how it interacts with everything else.

> WARNING: Device "consolectl" is Giant locked and may be deleted before 
> FreeBSD 13.0.

Might need to migrate some bits over to vt at some point.

-- 
  Brandon Bergren
  bdragon at FreeBSD.org